House Majority Leader Eric Cantor (R-Va.) will deliver a “major national security speech” on Monday sharply criticizing President Barack Obama’s leadership abroad, touching on a variety of topics ranging from Iranian nuclear negotiations to Russian-American diplomacy.

“America’s friends worry we have lost our way, that we have lost the will to live up to our values or stand up to aggressors. They see a divided, inward-looking America that is focused on its weaknesses rather than its strengths, and they know this is an America that invites challenges and emboldens adversaries,” Cantor will say, according to remarks obtained by POLITICO’s Mike Allen in Playbook.

Cantor’s speech, which seeks to lay out a vision of “clear principles” that should drive American foreign policy, hits the Obama administration particularly hard for its approach to negotiations over Iran’s nuclear program.

“I can imagine few more destabilizing moments in world history than Iran on the threshold of being a nuclear power,” Cantor says in the remarks. “Make no mistake: Iran is a brutal theocracy. Its leaders violently repress dissent at home and support conflict and chaos abroad. We should lay the groundwork now for additional sanctions in the event Iran violates the terms of the interim agreement.”